GS1510 Gennum Corporation, GS1510 Datasheet - Page 6

• Manufacturer Part Number: GS1510
• Description: Hd-linx (tm) THDTV Serial Digital Deformatter
• Manufacturer: Gennum Corporation

1.2 PIN DESCRIPTIONS
GENNUM CORPORATION
52, 49, 48,
45, 44, 43,
42, 41, 40,
64, 63, 62,
61, 60, 57,
56, 55, 54,
NUMBER
PIN
32
33
34
35
36
39
53
65
(CHROMA channel)
LINE_CRC_ERR_C
LINE_CRC_ERR_Y
DATA_OUT[19:10]
(LUMA channel)
DATA_OUT[9:0]
LN_ERR
FIFO_L
NAME
OEN
(Continued)
(Continued)
(Continued)
(Continued)
TN
Synchronous
Synchronous
Synchronous
Synchronous
Synchronous
Synchronous
wrt PCLK_IN
wrt PCLK_IN
wrt PCLK_IN
synchronous
wrt PCLK_IN
wrt PCLK_IN
wrt PCLK_IN
TIMING
Non-
Output
Output
Output
Output
Output
Output
TYPE
TEST
Input
6
Status Signal Output. Indicates a difference in the calculated versus
embedded CRC in the CHROMA channel. When LINE_CRC_ERR_C
is high, it indicates that the GS1510 has detected a difference
between the line based CRCs it calculates for the CHROMA channel
and the line based CRCs embedded within the CHROMA channel.
When LINE_CRC_ERR_C is low, the embedded and calculated
CRCs match. Refer to Fig. 6 for timing information of
LINE_CRC_ERR_C.
Status Signal Output. Indicates a difference in the calculated versus
embedded CRC in the LUMA channel. When LINE_CRC_ERR_Y is
high, it indicates that the GS1510 has detected a difference
between the line based CRCs it calculates for the LUMA channel
and the line based CRCs embedded within the LUMA channel.
When LINE_CRC_ERR_Y is low, the embedded and calculated
CRCs match. Refer to Fig. 6 for timing information of
LINE_CRC_ERR_Y.
Status Signal Output. Used to control an external FIFO(s). FIFO_L is
normally high, but is set low for the EAV or SAV word depending on
the state of F_E/S. Refer to Fig. 4 for timing information of FIFO_L
relative to LUMA (DATA_OUT[19:10]) and CHROMA
(DATA_OUT[9:0]).
Test Pin. Used for test purposes only. This pin must be connected to
V
Control Signal Input. Used to enable the DATA_OUT[19:0] output
bus or set it to a high Z state. When OEN is low, the LUMA
(DATA_OUT[19:10]) and CHROMA (DATA_OUT [9:0]) busses are
enabled. When OEN is high, these busses are in a high Z state.
CHROMA Output Data Bus. DATA_OUT [9] is CHROMA_OUT[9]
which is the MSB of the CHROMA output signal (pin 52). DATA_OUT
[0] is CHROMA_OUT[0] which is the LSB of the CHROMA output
signal (pin 39).
LUMA Output Data Bus. DATA_OUT [19] is LUMA_OUT[9] which is
the MSB of the LUMA output signal (pin 64). DATA_OUT [10] is
LUMA_OUT[0] which is the LSB of the LUMA output signal (pin 53).
Status Signal Output. Used to indicate a Line Number error or a
mismatch between the embedded line number and the flywheel line
number when the flywheel is enabled. When LN_ERR is high, a line
number error is detected or the internal flywheel indicates
mismatching line numbers. Refer to Fig. 3 for timing information of
LN_ERR relative to LUMA (DATA_OUT[19:10]) and CHROMA
(DATA_OUT [9:0]) Since LN_ERR depends on the sequence of line
numbers, a line number error will actually cause LN_ERR to go high
for two lines.
DD
for normal operation
DESCRIPTION
52247 - 3